Watch what happens when you mix Coca-Cola with milk. Phosphoric acid molecules attach to the milk giving them more density while the remaining liquid that makes up the milk and Coca-Cola now being lighter floats on top.

image credit: nate2b Ice hotels are an experience that should be on every traveler's bucket list. With the coolest amenities and epic winter wonderland activities, these frosty hotels make for the ultimate wintertime vacay.

image credit Olive Oatman (1837-1903) was a woman whose family was killed in 1851 when she was fourteen in today's Arizona by a Native American tribe, possibly the Yavapai, who captured and enslaved her and her sister and later sold them to the Mohave people.

image credit This isn't another story about that dress, or at least, not really. It's about the way that humans see the world, and how until we have a way to describe something, even something so fundamental as a color, we may not even notice that it's there.